undermining

The constant undermining of the old wall by the rain finally made it collapse.

用法提示：这里 undermining 是名词，表示‘侵蚀、破坏’的过程。

Their repeated lies led to the slow undermining of public trust in the company.

用法提示：这里 undermining 作名词，指‘削弱’的过程。

The manager saw the spreading of rumors as a deliberate undermining of her authority.

用法提示：undermining 在这句是名词，表示‘破坏、削弱’的行为。